Aseptic, air-permeable and water-proof dressing

The utility model relates to an aseptic, air-permeable and water-proof dressing, which comprises a water-proof adhesive layer and a dressing layer, wherein the dressing layer and the adhesive layer are bonded into an integral structure; and the outer edge of the adhesive layer is larger than that of the dressing layer. During use, a wound is taken as a center, the dressing layer is fully covered on the wound, and the edge of the water-proof adhesive layer is bonded with the skin of a human body. The dressing can be water-proof, can be prevented from being wetted during urination, and can be wiped slightly with paper towel after urination, and is not required to be replaced once again; and the aseptic, air-permeable and water-proof dressing is convenient to use, the pain of a patient is relieved greatly, the economic burden of the patient is lowered, and workload of medical personnel is lowered.